Datasheet

LTC6908-1/LTC6908-2
12
690812fa
TYPICAL APPLICATIO S
U
Figure 8a. 1.1MHz, 1.8V/16A Step-Down Regulator
PV
IN
PV
IN
PV
IN
PV
IN
PV
IN
PV
IN
PV
IN
PV
IN
SV
IN
TRACK
PGOOD
RUN/SS
I
TH
R
T
SGND
PGND
PGND
PGND
SYNC/MODE
1
2
11
12
20
21
30
31
25
38
37
36
34
33
32
19
18
17
16
3
4
9
10
22
23
28
29
24
35
5
7
26
6
8
13
14
15
27
SW
SW
SW
SW
SW
SW
SW
SW
V
FB
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
V
REF
LTC3418
L1
0.2µH
C2
1000pF
X7R
C
OUT
100µF
×4
C
IN1
100µF
×4
C
SVIN1
1µF
X7R
V
IN
3.3V
V
OUT
1.8V
16A
R1
2.55k
R2
2k
R
PG1
100k
R
SS1
2.2M
C
SS1
1000pF
X7R
C1A
47pF
X7R
C
ITH
2200pF
X7R
C
REF1
2.2µF
X7R
R
ITH
2k
R
OSC1
69.8k
R
SVIN1
100Ω
C
SVIN2
1µF
X7R
R
SVIN2
100Ω
C
REF2
2.2µF
X7R
C1B
47pF
X7R
690812 TA02
PV
IN
PV
IN
PV
IN
PV
IN
PV
IN
PV
IN
PV
IN
PV
IN
SV
IN
TRACK
PGOOD
RUN/SS
I
TH
R
T
SGND
PGND
PGND
PGND
SYNC/MODE
1
2
11
12
20
21
30
31
25
38
37
36
34
33
32
19
18
17
16
3
4
9
10
22
23
28
29
24
35
5
7
26
6
8
13
14
15
27
SW
SW
SW
SW
SW
SW
SW
SW
V
FB
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
V
REF
LTC3418
L2
0.2µH
C
IN2
100µF
×4
C
IN1
, C
IN2
, C
OUT
: TDK C3225X5R0J107M
L1, L2: VISHAY DALE IHLP-2525CZ-01
R
PG2
100k
R
OSC2
69.8k
C
BYP
90.9k
OUT1
OUT2
f
OUT
= 10MHz • 10k/R
SET
MOD
V
+
GND
SET
LTC6908-1
0.1µF
V
IN
2.8V TO 5.5V